The National Cyber Security Centre (NCSC) has a key objective to understand the cyber security environment, share knowledge, and use that expertise to identify and address systematic vulnerabilities.

The NCSC provides guidance to organisations on how to protect themselves from cyber attack, and CareCERT was established in 2015 to provide national cyber support services for the health and care system. It is delivered by NHS Digital, working with the NCSC.

The National Crime Agency (NCA) leads the law enforcement response to cyber crime, including the recent 'WannaCry' cyber attacks, working with NCSC and partners across Policing to identify cyber criminals and bring them to justice.